Spark-arrester.



E. T. COX.

SPARK ARRESTER. APPLICATION FILED FEB. :2. i914. RENEWED AUG. 18,1916. 1,200,816.

Patented Oct. 10, 1916.

2 SHEETS-SHEET l.

' E. T. COX.

SPARK'ARRESTER. APPLICATION FILED FEB. 12. l9l4- RENEWED AUG. 18,1916- Patented Oct. 10, 1916.

2 SHEETS-SHEET 2.

. allofthe figures,

'2, the stack (it being understood that the ployed on locomotives,

for closing UNITED STATES PATENT OFFICE.

EMMETT TEELTON COX, MOKENNEY, VIRGINIA.

- SPARK-ARRESTER.

Specification of Letters Patent.

Application filed February 12, 1914, Serial No. 818,254. Renewed August 18, 1916. Serial No. 115,695.

To all whom it may concern: 7

Be it known that I, EMMn'rr T. Cox, residing at McKenney, in the county of Dinwiddie and State of Vir 'nia, have'invented certain new and usefu Spark-Arresters, of which the following is a specification.

My invention has for its object to provide a practical and efiicient mechanism for arresting and extinguishing the sparks from smoke-stacks of any kind, viz.those emsteam boats, stationary boilers, heating furnaces, or in fact, any

stack through which smoke and sparks are discharged.

Generically, the invention provides means the stack (when the stack is the qrdinary open one) and drawing. off the products of combustion by a suction fan,

discharging the products of combustion at somejpredetermined place, and, when found desirable, first passing the products of combustion through a bafile box to arrest and extinguish any fire that may be present therein, supplementing such baflle box by a water spray, if found necessary.

In its more subordinate nature, the invention also embodies those novel details of construction, combination and arrangement of parts, all of which will be first fully de scribed, and then pointed out in the appended claims, reference being had to the accompanying drawings, in which Figure 1 is a perspective view illustrating the application of the invention to a locomotive. Fig. 2 is an enlarged detail side.

elevation of one of the fans or blowers Fig. 3 is a top plan view of the same. Fig. 4 isan enlarged sectional View of the bafiie box and water spraying device, and showing the connection of the same with the distributing union .through which the condensation products are also adaptedto be separated. 5 is'.. ,la' detail horizontal section through one of'th valves shownin Fig. l. Fig. 6 is a detail perspective view illustrating one way of provlding ajlcover for the-stack. Fig.7 is a detail. viewfshowing one .way of holding the Smokestack cover to its adjustments. 7 1

In the drawings, in which like letters and numerals of reference indicate like parts in 1 represents the boiler and boiler and stack may be of any type). If the stack 2 is normally an open one, such as Improvements inclosed by a spring 8, as indicatedimFig. 6

of the drawings. The rope 7 may e proyided with a hook 9 and secured to a pin 10 n the engineers cab, when it is, desired to hold the cover 4 in its open position. It

' should be understood that this is desirable when the locomotive is standing. still and the blower (hereinafter referred to) is not operating.

Secured at the sides-of the stack ofl'take p pes ll WhlCh convey the pro fiet s" of combustion to the blowers 12 (there bemg usually two blowers employed, one on each s1de of. the locomotive, when the inventlon is employed on locomotives). The blowers 12 are each provided with a driving shaft 13 and are driven, in the case of the locomotive use, from a moving part, such as the front truck wheels, through the medium, for example, of a belt 14 and pulleys 15, or in any other preferred way, the pulley 15 on the shaft 13 of the blower being loose and adapted to be secured to turn with the shaft by a suitable clutch element 16 that is operated by lever 17, and rod 17* whichprojects into reach of the engineer. The discharge 18 ofthe blower preferably delivers into a baflie box 19 in which the bafiles 2O serve to interrupt the passage of the solid matter, such as sparks and cause them to deposit in the bottom of the box.

Any sparks which pass through the boxfound that the box 19 is insuflicient to extinguish the sparks completely.

23 is the bell into which the duct 21 discharges and the bell 23 is provided with a plurality of oil'takes 24, 25 and 26, the latter'one of which may becoupled to a pipe 27 which can run under the cars and discharge at the rear of the train. The offtake 25 may extend up and discharge over the top of the first or baggage car, while the oiftake 24. may be used to discharge directly toward the ground at the rear of the tender, it being understood that suitable valves 28 are employed in the various ducts 24, 25 and 26. The bell 23 may be left open at its forward end so that the water from the spray nozzle 22 may drop out 60 I under control of the engineer for manipuhas heretofore been saidl desired.

baflie boxinto the open instead of passing through the various discharges 24, 25 and 26, the bell 23 and duct 21 acting as an ejector by virtue of their correlative arrangement.

I have not illustrated the application of my invention to a steam boat smoke-stack, as its application will be obvious from what By the use of my invention, not only are the sparks arrested, but the smoke is largely suppressed and when the invention is used in cities on smoke-stacks of manufacturing plants or stationary engines, of combustion may be directly discharged into the sewers and thus not vitiate the atmosphere.

From the foregoing description, taken in connection with the accompanying rawings, it is thought the complete construction, combination and arrangement of parts will be fully understood by those skilled in the art to which the invention relates, and I desire it understood that changes in the details of, construction and arrangement of parts may be made without departing from the spirit of the invention set forth in the following claims.

What I claim is:

1. In combination with "a smoke stack the products of into which said products of combustion are discharged by said drawing oif means, said baffle box ineluding means for retarding the sparks, a distributing bell, a pipe leading from said end of said bell, a ring around said pipe supporting it within said bell, means for admitting water said pipe to extinguish any sparks that pass through the baffle box, said bell having proand means for drawing off vision for draining the water out of the same at its open end, a plurality of off-takes from the closed end of said bell and control valves in said off-takes whereby any one or more of said olf-takes may be opened or closed, as

arrester, the combination for drawing the from the stack, a

2. In a spark with a stack, of means roducts ofcombustion aflie box into which said means delivers the products of combustion, a discharge duct from said bafiie box, a receiving bell into which said duct discharges, and a plurality of ofitakes from said receivlng bell through all or any one of which the discharged products may be directed to pass, and valves in said offtakes for controlling the-"passage through the same 3. In combination with the smoke-stack of a locomotive; of a cover therefor, means lating said cover, a blower fan mounted on the engine, a pipe connection between the intakeof said fan and said stack, said fan including an operating shaft, power transthe products into mitting wheels of the locomotive and the fan shaft, said connections including a clutch device, and means under the control of the engineer for operating said clutch device, a discharge duct from said blower fan, said dis charge duct delivering downwardly and rearwardly beneath the train, substantially as shown and described.

4. In combination with the smoke-stack of a locomotive; of a cover therefor, means under control of the engineer for manipulating said cover, a blower fan mounted on the engine, a pipe connection between the intake of said fan and said stack, said-fan including an operating shaft, power transmitting connections between one of the wheels of the locomotive and the fan shaft, said connections including a clutch device, means under the control of the engineer for op erating said clutch device, a discharge duct from said blower fan, said discharge duct delivering downwardl and rearwardly beneath thetrain, a ba e box mounted under the tender into which said discharge duct delivers the products of combustion, said baffle box having an outlet.

5. The combination with the smoke-stack of a locomotive; of a cover therefor, means under control of the engineer for manipulating said cover, a blower fan mounted on the engine, a pipe connection between the intake of said fan and said stack, said fan including an operating shaft, power transmitting connections between one of the wheels of the locomotive and the fan shaft, said connections including a clutch device, means under the control of the engineer for operating said clutch device, a discharge duct from said blower fan, said discharge duct delivering downwardly and rearwardly beneath the train, a bafile box mounted under the tender into which said discharge duct delivers the roducts of combustion, said baflle box having an outlet, and means for receiving the discharge from said bafile box outlet and directing the same to a predetermined place for discharge into atmosphere.

6. In combination with the smoke-stack of a locomotive; of a cover therefor, means under the control of'the en 'neer for manipulating said cover, a blower fan mounted on the engine, a pipe connection between the intake of said fan and said stack, said fan including an operating shaft, power transmitting connections between one of the wheels of the locomotive and the fan shaft, said connections includinga clutch device, means under the control of the engineer for operating said clutch device, a discharge duct from said blower fan, said discharge duct delivering downwardly and rearwardly beneath the train, a bafile box mounted under the tender into which said discharge connections between one of the p duct delivers the products of combustion, said baflie box having an outlet, means for receiving the discharge from said bafile box outlet, and directing the same to a prefi'determined place for discharging into atmosphere, said last named means comprising a distributing bell, and a plurality of outlet ducts from said bell with valves in said ducts for controlling the passage through the same.

EMMETT TEELTON COX. Witnesses:

OYRUs DUNN, C. G. MEDLOCK. 

